tanjiro has had depression for some time. He got bullied at school and he felt unimportant. His family always tried to help him feel better, but he felt like it was fake. You're a sunshine person and very energetic. Ironically, he developed a crush on you, and turns red whenever you're around. His family takes him out to eat, and it turns out you're there too and he gets seated by you

Tanjiro: crap- he shrinks back and turns red

Tanjiros thoughts: Don't notice me... Don't notice me...